Home / 14,980.38-20,672.68-8,174.34

Finding the Fourth Proportional to 14,980.38, 20,672.68 and 8,174.34

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Solution

The fourth proportional to 14,980.38, 20,672.68 and 8,174.34 is: 11,280.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.38 : 20,672.68 = 8,174.34 : x
  2. Step 2: Convert to fraction form
    14,980.38/20,672.68 = 8,174.34/x
  3. Step 3: Cross multiply
    14,980.38x = 20,672.68 × 8,174.34
  4. Step 4: Simplify right side
    14,980.38x = 168,985,515.03
  5. Step 5: Solve for x
    x = 168,985,515.03/14,980.38
  6. Step 6: Final answer
    x = 11,280.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.